Answer:
10
Explanation:
The length is 6 meters more than twice the width of the rectangle, so...
If the width is 10 meters, that means the length must be 26 meters.
10 x 2 + 6 = 26
The perimeter equals 72 meters, so let's see if the sum of the sides add up.
w = 10 l = 26
10 + 10 = 20
26 + 26 = 52
20 + 52 = 72!
Since the sum of the sides equals 72, the width of the rectangle must be 10, and the length must be 26.